I have a 06 hammer with swept pipes and an S&S airbox. Had the bike flashed with the S&S download at dealer but she still is very ruff on start up till she gets warm. She also seems like she is running rich( black smoke on hard throttle) with the occasional backfire on roll off of throttle.My question is do I need a fuel controller and if so will I need to get reflashed to stock or can I just plug and play? Or do I need to look else where to solve this issue?Any help will be greatly appreciated cause I love this bike and I don't want to hurt the motor, I put her though enough pain trying to carry my big 6'5" 375 pound ass around so I need to make sure she is running right!! Thanks for any help at all my brothers!!!!